Cramping/contractions? Help!

Anna • Married to the most amazing man, and our first son is one on the 25th of June, 2017. Next baby is due sometime in February! ❤️
I have been feeling very crampy/having what feels like contractions all day. The past couple of hours they have been consistent and often. Should I go to l&d? It also radiates in my back, too! 36 weeks 4 days abs have not lost mucous plug, baby hasn't dropped and water hasn't broken. I just don't want to go if I don't need to.